202387978932 has 12 divisors (see below), whose sum is σ = 472238617536. Its totient is φ = 67462659640.

The previous prime is 202387978841. The next prime is 202387978987. The reversal of 202387978932 is 239879783202.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8432832444 + ... + 8432832467.

It is an arithmetic number, because the mean of its divisors is an integer number (39353218128).

Almost surely, 2^202387978932 is an apocalyptic number.

It is an amenable number.

202387978932 is an abundant number, since it is smaller than the sum of its proper divisors (269850638604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202387978932 is a wasteful number, since it uses less digits than its factorization.

202387978932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16865664918 (or 16865664916 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 60.

The spelling of 202387978932 in words is "two hundred two billion, three hundred eighty-seven million, nine hundred seventy-eight thousand, nine hundred thirty-two".